avr/uart_hw: basically works for a while then stops...

avr/modules/uart_hw/m_lowlevel_uart.asm

@@ -188,27 +188,14 @@ l_storeChar_%:
   brcc l_econtent_%                             ; content error (msg too long)
   subi r16, 2                                   ; subtract bytes already received
   std Y+UART_HW_IFACE_OFFS_READBUFLEFT, r16     ; set new number of bytes left
-  brne l_end_%                                  ; jmp if still bytes left to received
+  brne l_end_%                                  ; jmp if still bytes left to receive
 l_msgFinished_%:
-  ldd r16, Y+UART_HW_IFACE_OFFS_READBUFNUM
-  rcall NET_AddIncomingMsgNum                   ; (R17, R18, X)
-  brcs l_msgStored_%
-  ; msg complete but could not store
-  rcall NET_Buffer_Locate
-  rcall UART_HW_Interface_SetReadBuffer         ; reset/reuse current buffer
-  ldi r16, NET_IFACE_OFFS_ERR_NOBUF_LOW
-  ldi r17, UART_HW_READMODE_READING
-  rjmp l_incCounterAndEnterMode_%
-l_msgStored_%:
   ldi r16, NET_IFACE_OFFS_PACKETSIN_LOW
   ldi r17, UART_HW_READMODE_MSGRECEIVED
   rjmp l_incCounterAndEnterMode_%
 l_hwerr_%:
   ldi r16, NET_IFACE_OFFS_ERR_IO_LOW
-  rcall NET_Interface_IncCounter16
-  ldi r16, UART_HW_READMODE_SKIPPING
-  std Y+UART_HW_IFACE_OFFS_READMODE, r16        ; set read mode
-  rjmp l_end_%
+  rjmp l_incCounterAndEnterSkipping_%
 l_econtent_%:
   ldi r16, NET_IFACE_OFFS_ERR_CONTENT_LOW
   rjmp l_incCounterAndEnterSkipping_%
@@ -315,3 +302,38 @@ l_end_%:
 
 
 
+; ---------------------------------------------------------------------------
+; @macro M_UART_HW_Uart_SetAttnInput
+;
+; Set ATTN line as input (making it effectively HIGH due to pull-up resistor on
+; the line)
+;
+; @clobbers none
+
+.macro M_UART_HW_Uart_SetAttnInput
+  cbi COM_ATTN_DDR, COM_ATTN_PIN           ; set ATTN as input
+.ifdef COM_ATTN_PUE
+.else
+  cbi COM_ATTN_PUE, COM_ATTN_PIN           ; disable pullup on ATTN
+.endif
+  cbi COM_ATTN_OUTPUT, COM_ATTN_PIN        ; disable pullup on ATTN
+.endmacro
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @macro M_UART_HW_Uart_SetAttnLow
+;
+; Set ATTN line low.
+;
+; @clobbers none
+
+.macro M_UART_HW_Uart_SetAttnLow
+  sbi COM_ATTN_DDR, COM_ATTN_PIN            ; set ATTN as output
+  cbi COM_ATTN_OUTPUT, COM_ATTN_PIN         ; set ATTN low
+.endmacro
+
+
+
+